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Title:
CARDO COPOLYBENZIMIDAZOLES, GAS SEPARATION MEMBRANES AND PREPARATION METHOD THEREOF
Document Type and Number:
Japanese Patent JP2014152326
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide cardo copolybenzimidazoles, gas separation membranes, and a preparation method thereof.SOLUTION: This invention relates to cardo copolybenzimidazoles, a gas separation membrane using the same and a method for preparing the same. More particularly, cardo copolybenzimidazoles obtained by introducing cardo groups and aromatic ether groups to a polybenzimidazole backbone are synthesized. A gas separation membrane has significantly improved oxygen permeability by using the same, and the method for preparing the same is also provided. The cardo copolybenzimidazoles prepared by the invention have improved solubility as compared to the polybenzimidazole polymers according to the related art, show excellent mechanical properties while maintaining thermal stability so as to be formed into a film shape, and can provide a gas separation membrane having significantly improved gas permeability, particularly, oxygen permeability.

Inventors:
KIM HYOUNG-JOON
HAN JUN YOUNG
JANG JONG HYUN
CHO EUN AE
HAN JONGHEE
NAM SUK WOO
LIM TAE-HOON
YOON SUNG PIL
YOO SUNG JONG
DIRK HENKENSMEIER
Application Number:
JP2013083958A
Publication Date:
August 25, 2014
Filing Date:
April 12, 2013
Export Citation:
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Assignee:
KOREA INST SCI & TECH
International Classes:
C08G61/12; B01D71/62; C08J5/18
Domestic Patent References:
JP2013017988A2013-01-31
JP2005537380A2005-12-08
JPH05320338A1993-12-03
JPH08188648A1996-07-23
JP2006265385A2006-10-05
JP2013017988A2013-01-31
JP2005537380A2005-12-08
JPH05320338A1993-12-03
JPH08188648A1996-07-23
JP2006265385A2006-10-05
Foreign References:
WO2013172330A12013-11-21
WO2000056430A12000-09-28
WO2013172330A12013-11-21
WO2000056430A12000-09-28
Attorney, Agent or Firm:
Patent business corporation HARAKENZO WORLD PATENT & TRADEMARK



 
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